import axios from 'axios'
// import config from '../config'
import store from 'store2'
// import { i18n } from './utils'
// json转换
import JSONbig from 'true-json-bigint'
// let cancel = {}
// let promiseArr = {}
const CancelToken = axios.CancelToken

function getToken () {
  let token
  if (sessionStorage.getItem('aillo_token')) {
    token = sessionStorage.getItem('aillo_token')
  } else if (store.get('aillo_token')) {
    token = store.get('aillo_token')
  } else {
    token = null
  }
  return token
}

// 请求拦截器
axios.interceptors.request.use(
  config => {
    if (getToken() !== null) {
      config.headers.token = `${getToken()}`
      config.headers.Authorization = `${getToken()}`
    }
    // config.headers.col = store.get('pathLang') // 语言
    return config
  },
  error => {
    return Promise.reject(error)
  }
)

// 响应拦截器即异常处理
axios.interceptors.response.use(
  response => {
    return response
  },
  error => {
    // console.log('error', error)
    // 错误消息提示语，我直接copy的代码，具体提示语改一哈~
    if (error && error.response) {
      switch (error.response.status) {
        case 400:
          error.message = '错误请求'
          break
        case 401:
          error.message = '未授权，请重新登录'
          break
        case 403:
          error.message = '拒绝访问'
          break
        case 404:
          error.message = '请求错误,未找到该资源'
          break
        case 405:
          error.message = '请求方法未允许'
          break
        case 408:
          error.message = '请求超时'
          break
        case 500:
          error.message = '服务器端出错'
          break
        case 501:
          error.message = '网络未实现'
          break
        case 502:
          error.message = '网络错误'
          break
        case 503:
          error.message = '服务不可用'
          break
        case 504:
          error.message = '网络超时'
          break
        case 505:
          error.message = 'http版本不支持该请求'
          break
        default:
          error.message = '连接错误'
      }
    } else {
      error.message = '连接到服务器失败'
    }
    // console.log(error)
    return Promise.resolve(error.response)
  }
)

// 设置默认请求头
axios.defaults.headers = {
  'X-Requested-With': 'XMLHttpRequest',
  'Access-Control-Allow-Origin': '*',
  'Content-Type': 'application/json',
  'Access-Control-Allow-Headers': 'x-requested-with,content-type'
  // Authorization: `Bearer ${getToken()}`
}
axios.defaults.timeout = 1000000

class Request {
  constructor (props) {
    this.path = props
  }

  get (url, param) {
    return new Promise(resolve => {
      axios({
        method: 'get',
        url: `${this.path}${url}`,
        params: param,
        cancelToken: new CancelToken(c => {
          // cancel = c
        }),
        // 解决精度丢失
        transformResponse: {
          function (data) {
            return JSONbig.parse(data)
          }
        }
      }).then(res => {
        resolve(res.data)
      })
    })
  }

  /**
   * 带headers的get方法
   * @param url
   * @param headers
   * @returns {Promise<any>}
   */
  headersGet (url, headers) {
    return new Promise(resolve => {
      axios({
        method: 'get',
        url: `${this.path}${url}`,
        headers: headers,
        cancelToken: new CancelToken(c => {
        }),
        // 解决精度丢失在传递给 then/catch 前，允许修改响应数据
        transformResponse: {
          function (data) {
            return JSONbig.parse(data)
          }
        }
      }).then(res => {
        resolve(res.data)
      })
    })
  }

  post (url, param) {
    return new Promise(resolve => {
      axios({
        method: 'post',
        url: `${this.path}${url}`,
        data: param,
        cancelToken: new CancelToken(c => {
          // cancel = c
        }),
        // 解决精度丢失
        transformResponse: {
          function (data) {
            return JSONbig.parse(data)
          }
        }
      }).then(res => {
        resolve(res.data)
      })
    })
  }

  put (url, param) {
    return new Promise(resolve => {
      axios({
        method: 'put',
        url: `${this.path}${url}`,
        data: param,
        cancelToken: new CancelToken(c => {
          // cancel = c
        })
      }).then(res => {
        resolve(res.data)
      })
    })
  }

  delete (url, param) {
    return new Promise(resolve => {
      axios({
        method: 'delete',
        url: `${this.path}${url}`,
        data: param,
        cancelToken: new CancelToken(c => {
          // cancel = c
        })
      }).then(res => {
        resolve(res.data)
      })
    })
  }
}

export default Request
